Ecosystems Flashcards

(42 cards)

1
Q

what are abiotic factors?

A

are physical and chemical factors that affect where and how an organism lives

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2
Q

what are biotic factors?

A

presence or absences of other living things that affect an organism

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3
Q

what are another name for producers?

A

autotrophs

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4
Q

what are another name for consumers?

A

heterotrophs

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5
Q

what are producers?

A

they produce their own food.

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6
Q

where do producers get their energy from?

A

the sun

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7
Q

what are consumers?

A

are organisms that eat plants or on other animals to obtain energy

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8
Q

is bacteria a consumer?

A

yes

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9
Q

what are animals that eat plants called?

A

herbivores

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10
Q

what are animals that eat both plants and meat called?

A

omnivoures

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11
Q

what are animals that only eat meat called?

A

carnivoures

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12
Q

what are oraganims that eat dead plants and animal matter called?

A

detritivores and decomposers

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13
Q

what are scavangers?

A

feed on dead remains of other animals

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14
Q

what are examples of scavangers?

A

fox or vulture

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15
Q

what are detritivores?

A

feed on dead or decaying remains or waste

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16
Q

what are example of detritivores?

A

dung beetles or worms

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17
Q

what are decomposers?

A

break down dead matter

18
Q

what are examples of decomposers?

A

bacteria or fungi

19
Q

a food chain shows…

A

the transfer of energy from one organism to another

20
Q

what do the arrows in a food chain represent?

A

food to feeder or energy flow into or out of each trophic level

21
Q

what is trophic level?

A

each level on a food chain

22
Q

what is an example of a food chain?

A

grass –> rabbit –> fox

23
Q

what is a primiary producer?

A

converts energy from the sun

24
Q

what is first order or primary consumer?

A

herbivores that eat the plants (procduers)

25
what is second order or secondary consumer?
carnivores that eat the herbivores
26
what is a food web?
it shows the differnt food chains in an ecosystem that forms into a complex webs of feeding relationships
27
food webs and food chain always start with...
the producers
28
food webs and food chains always end with..
the apex predator/ top consumer
29
what is the law of conservation of energy?
energy cannot be created or destroyed only changed from one form to another
30
what must ecosystems recieve?
energy from the outside
31
what does the producer harness?
the suns energy and converts it into a consumable form
32
what is the chemical energy consumed by an organism in food transform to?
movement energy stored chemical energy sound energy heat
33
what types of energy is lost at each trophic level?
heat energy
34
why is heat energy lost at every trophic level?
bc of breathing and movement
35
The amount of energy available to each trophic level will always equal....
amount entering that trophic level, minus the energy lost as heat and dead material
36
amount entering that trophic level, minus the energy lost as heat and dead material is always equal...
The amount of energy available to each trophic level will always equal
37
what i the 10% rule?
10% of the energy at each trophic level is transferred along the food chain
38
what does the 10% rule mean for food chains?
only be a few organisms long , as the top consumers would not receive enough energy if they were longer
39
what is recycled within the ecosystems?
matter
40
what enters your body?
carbon, oxygen, hydrogen and nitrogen atoms
41
carbon, oxygen, hydrogen and nitrogen atoms enters your body in...
proteins, carbohydrates, fats
42
where to these the leave to?
air, water and soil in different forms